
Ultra Unscented Clumping Clay Litter
Best for: Best overall — the multi-cat workhorse
Product review
Dr. Elsey's Ultra is the default recommendation for a reason: a 100% bentonite clay that forms rock-hard clumps, pours with almost no visible dust, and controls odor without any fragrance. It has held top-pick status with testers for years, and at grocery-store money per pound it undercuts every premium rival in this list.
The company
Dr. Elsey's is made by Precious Cat, Inc. of Cheyenne, Wyoming, founded in 1987 by feline-only veterinarian Dr. Bruce Elsey and his wife Kathy; the company says it has donated over $13 million in support and products to shelters and rescues.
- Top tester marks for clump strength (9.8/10) and dust (9.4/10) in independent litter testing, and a perennial Wirecutter favorite
- At about $0.52/lb it is the cheapest top-tier litter per pound in this ranking
- Unscented-only formula from a veterinarian-founded brand that discontinued its scented litters on health evidence
- The 40 lb bag is heavy, with no handle or resealable closure (flagged in Forbes Vetted testing)
- Bentonite is strip-mined, and the brand publishes no mining or sourcing disclosure
- Clumps can stick slightly to the pan in hands-on testing
Ultra Unscented Clumping Clay Litter








